Finding the Fourth Proportional to 87,174.61, 130,757.30 and 28,005.67

Step by Step Solution

1. Step 1: Write the proportion equation
   87,174.61 : 130,757.30 = 28,005.67 : x
2. Step 2: Convert to fraction form
   87,174.61/130,757.30 = 28,005.67/x
3. Step 3: Cross multiply
   87,174.61x = 130,757.30 × 28,005.67
4. Step 4: Simplify right side
   87,174.61x = 3,661,945,793.89
5. Step 5: Solve for x
   x = 3,661,945,793.89/87,174.61
6. Step 6: Final answer
   x = 42,007.02